EP0296375A3 - Mechanic-electric differential pressure transducer and method for adjusting such a transducer - Google Patents

Mechanic-electric differential pressure transducer and method for adjusting such a transducer Download PDF

Info

Publication number
EP0296375A3
EP0296375A3 EP88108486A EP88108486A EP0296375A3 EP 0296375 A3 EP0296375 A3 EP 0296375A3 EP 88108486 A EP88108486 A EP 88108486A EP 88108486 A EP88108486 A EP 88108486A EP 0296375 A3 EP0296375 A3 EP 0296375A3
Authority
EP
European Patent Office
Prior art keywords
transducer
core
differential pressure
mechanic
adjusting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88108486A
Other languages
German (de)
French (fr)
Other versions
EP0296375A2 (en
Inventor
Karl Heinz Matthess
Klaus Gerhardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hottinger Bruel and Kjaer GmbH
Original Assignee
Hottinger Baldwin Messtechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hottinger Baldwin Messtechnik GmbH filed Critical Hottinger Baldwin Messtechnik GmbH
Publication of EP0296375A2 publication Critical patent/EP0296375A2/en
Publication of EP0296375A3 publication Critical patent/EP0296375A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/007—Transmitting or indicating the displacement of flexible diaphragms using variations in inductance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

Bei einem Differenzdruck-Wandler (1) mit durch eine bewegbare Wand (4) abgeschlossenen Kammern (5,6) und mit einer induktiven Einrichtung (11,12,13,14,21), die einen mit der Wand (4) bewegbaren Kern (21) und eine in ihrer Lage zum Kern (21) einstellbare Spulenanordnung (13,14) umfaßt, ist zwecks Vereinfachung des konstruk­ tiven Aufbaus, kostengünstiger Herstellbarkeit und ho­ her Genauigkeit und Reproduzierbarkeit der Meßwerte so­ wie einfacher und genauer Justiermöglichkeit vorgese­ hen, daß Kern (21) und Spulenanordnung (13,14) eine Differentialdrossel mit zumindest zwei gegeneinander verstellbaren Spulen (13,14) bilden und daß die Lage jeder Spule (13,14) zum Kern (21) einstellbar ist. With a differential pressure converter (1) with a movable wall (4) closed chambers (5,6) and with an inductive device (11, 12, 13, 14, 21) that one with the wall (4) movable core (21) and one in its position to the core (21) adjustable coil arrangement (13,14) is included in order to simplify the construct tive structure, inexpensive to manufacture and ho accuracy and reproducibility of the measured values how simple and precise adjustment is possible hen that core (21) and coil assembly (13,14) a Differential throttle with at least two against each other adjustable coils (13, 14) form and that the location each coil (13, 14) to the core (21) is adjustable.

EP88108486A 1987-06-12 1988-05-27 Mechanic-electric differential pressure transducer and method for adjusting such a transducer Withdrawn EP0296375A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873719620 DE3719620A1 (en) 1987-06-12 1987-06-12 MECHANICAL-ELECTRIC DIFFERENTIAL PRESSURE CONVERTER AND METHOD FOR ADJUSTING SUCH A CONVERTER
DE3719620 1987-06-12

Publications (2)

Publication Number Publication Date
EP0296375A2 EP0296375A2 (en) 1988-12-28
EP0296375A3 true EP0296375A3 (en) 1990-05-23

Family

ID=6329550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108486A Withdrawn EP0296375A3 (en) 1987-06-12 1988-05-27 Mechanic-electric differential pressure transducer and method for adjusting such a transducer

Country Status (2)

Country Link
EP (1) EP0296375A3 (en)
DE (1) DE3719620A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4308718C2 (en) * 1993-03-15 1996-04-25 Siemens Ag Differential pressure transmitter
DE19510447A1 (en) * 1995-02-10 1996-08-14 Landis & Gyr Tech Innovat Differential pressure sensor with dual pressure chambers

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275307B (en) * 1962-08-23 1968-08-14 Boeing Co Device for converting pressure pulses into electrical output signals
DE1817320A1 (en) * 1968-01-02 1969-08-14 Prvni Brnenska Strojirna Zd Y Induction differential pressure transducer
DE2164896B2 (en) * 1971-12-28 1978-06-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Measuring cell for pressure or differential pressure
DE2503401B2 (en) * 1974-03-08 1979-01-18 Yokogawa Electric Works, Ltd., Musashino, Tokio (Japan) Differential pressure transducer
GB2125167A (en) * 1982-07-15 1984-02-29 Tekflo Ltd Electrical fluid pressure transducer diaphragms
US4559829A (en) * 1983-07-08 1985-12-24 Kent-Tieghi S.P.A. Differential pressure transmitter for industrial process fluids, provided with compensation of static pressure change effects

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289479A (en) * 1964-10-05 1966-12-06 Camco Inc Differential pressure sensing transducer
JPS58193432A (en) * 1982-05-07 1983-11-11 Fukuda:Kk Pressure sensor
DE3512529A1 (en) * 1985-04-06 1985-11-07 Schoppe & Faeser Gmbh, 4950 Minden Differential pressure transducer with measures for compensating the influences of variable noise quantities

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275307B (en) * 1962-08-23 1968-08-14 Boeing Co Device for converting pressure pulses into electrical output signals
DE1817320A1 (en) * 1968-01-02 1969-08-14 Prvni Brnenska Strojirna Zd Y Induction differential pressure transducer
DE2164896B2 (en) * 1971-12-28 1978-06-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Measuring cell for pressure or differential pressure
DE2503401B2 (en) * 1974-03-08 1979-01-18 Yokogawa Electric Works, Ltd., Musashino, Tokio (Japan) Differential pressure transducer
GB2125167A (en) * 1982-07-15 1984-02-29 Tekflo Ltd Electrical fluid pressure transducer diaphragms
US4559829A (en) * 1983-07-08 1985-12-24 Kent-Tieghi S.P.A. Differential pressure transmitter for industrial process fluids, provided with compensation of static pressure change effects

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 42 (P-256)(1479), 23 February 1984 & JP-A-58 193432 (FUKUDA K.K.) 11-11-1983 *

Also Published As

Publication number Publication date
EP0296375A2 (en) 1988-12-28
DE3719620A1 (en) 1988-12-29

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